TOP VIRAL VIDEOS OF APRIL: What's A "Nyan Cat"?

Rebecca Black dominated the entire month of April with her unprecedented viral hit "Friday."

All throughout the month, Black never left the front seat as everyone from T-Mobile to cute penguins tried but ultimately failed to take the top spot away from the teenage sensation.

While it's no surprise to see Rebecca Black in our top ten list, we are a bit confused as to how a video titled "Nyan Cat" got enough views to make the list. Words can't really descibe this "Nyan Cat" video, but it was featured on the Tosh.0 blog so it must be good, right?